Liquid-crystal-lens type light-modulating apparatus and liquid crystal display having the same
First Claim
1. A liquid-crystal-lens type light-modulating apparatus, comprising:
- a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface of the first substrate;
a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface of the second substrate;
an electrode-voltage control circuit connected to at east one of the first electrode layer and the second electrode layer; and
liquid crystal sandwiched between the first alignment layer and the second alignment layer,wherein at least one of the first electrode layer and the second electrode layer is formed as a patterned electrode, and the patterned electrode comprises;
a plurality of light-transmissive electrode regions and a plurality of light-shielding regions, arranged at an interval therebetween, and the light-transmissive electrode regions correspond to liquid-crystal-lenses; and
the liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate and on a light exiting side of the liquid-crystal-lens type light-modulating apparatus, and the shielding sheet comprises;
a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween;
each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than an area of the one of the electrode regions corresponding to it; and
a projection of each of the shielding sheet light-shielding regions on the second substrate, along a direction vertical to the second substrate, is between two adjacent light-shielding regions of the patterned electrode, which two adjacent light-shielding regions defining corresponding one of light-transmissive electrode regions of the patterned electrode;
the electrode-voltage control circuit is provided to control voltages applied to the at least one of the first electrode layer and the second electrode layer and thus the liquid-crystal-lenses have different focal-lengths to modulate light intensities bypassing the shielding sheet emitting out from the liquid-crystal-lenses.
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Accused Products
Abstract
A liquid-crystal-lens type light-modulating apparatus and a liquid crystal display having the same are disclosed. The liquid-crystal-lens type light-modulating apparatus comprises: a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface thereof; a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface thereof; and liquid crystal sandwiched between the first and second alignment layers, wherein at least one from the first and second electrode layers is formed as a patterned electrode, and the patterned electrode comprises: a plurality of electrode light-transmissive regions and a plurality of light-shielding regions, arranged at an interval therebetween; and the liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate, and the shielding sheet comprises: a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween; and each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than the area of an electrode region corresponding to it.
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Citations
20 Claims
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1. A liquid-crystal-lens type light-modulating apparatus, comprising:
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a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface of the first substrate; a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface of the second substrate; an electrode-voltage control circuit connected to at east one of the first electrode layer and the second electrode layer; and liquid crystal sandwiched between the first alignment layer and the second alignment layer, wherein at least one of the first electrode layer and the second electrode layer is formed as a patterned electrode, and the patterned electrode comprises;
a plurality of light-transmissive electrode regions and a plurality of light-shielding regions, arranged at an interval therebetween, and the light-transmissive electrode regions correspond to liquid-crystal-lenses; andthe liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate and on a light exiting side of the liquid-crystal-lens type light-modulating apparatus, and the shielding sheet comprises;
a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween;
each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than an area of the one of the electrode regions corresponding to it; and
a projection of each of the shielding sheet light-shielding regions on the second substrate, along a direction vertical to the second substrate, is between two adjacent light-shielding regions of the patterned electrode, which two adjacent light-shielding regions defining corresponding one of light-transmissive electrode regions of the patterned electrode;the electrode-voltage control circuit is provided to control voltages applied to the at least one of the first electrode layer and the second electrode layer and thus the liquid-crystal-lenses have different focal-lengths to modulate light intensities bypassing the shielding sheet emitting out from the liquid-crystal-lenses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A liquid crystal display, comprising:
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a backlight; and a liquid-crystal-lens type light-modulating apparatus provided above the backlight, the apparatus comprising; a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface of the first substrate; a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface of the second substrate; an electrode-voltage control circuit connected to at least one of the first electrode layer and the second electrode layer; and liquid crystal sandwiched between the first alignment layer and the second alignment layer, wherein at least one of the first electrode layer and the second electrode layer is formed as a patterned electrode, and the patterned electrode comprises;
a plurality of light-transmissive electrode regions and a plurality of light-shielding regions, arranged at an interval therebetween, and the light-transmissive electrode regions correspond to liquid-crystal-lenses; andthe liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate and on a light exiting side of the liquid-crystal-lens type light-modulating apparatus, and the shielding sheet comprises;
a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween; and
each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than an area of the one of the electrode regions corresponding to it; and
a projection of each of the shielding sheet light-shielding regions on the second substrate, along a direction vertical to the second substrate, is between two adjacent light-shielding regions of the patterned electrode, which two adjacent light-shielding regions defining corresponding one of light-transmissive electrode regions of the patterned electrode;the electrode-voltage control circuit is provided to control voltages applied to the at least one of the first electrode layer and the second electrode layer and thus the liquid-crystal-lenses have different focal-lengths to modulate light intensities bypassing the shielding sheet emitting out from the liquid-crystal-lenses. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification